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  • Need help with wiring garage for 210

    I am planning on using a 30 amp 2 pole breaker with 10/3 wire. The black and red will connect to the breaker, white and ground to the appropriate bus bar.

    The outlet I am using is a Cooper 50-A-250V NEMA 6-50 surface mount outlet. The instructions say the ground connects to green, the white to silver screw, and black and red to the remaining 2 screws. Only thing is I do not see the silver screw. Since I already have the 10/3, should I just not connect the white wire at either end and only use the 2 hots and ground?
    Any help would be greatly appreciated.
    Here are 2 pics. The first is a clear shot of the outlet. The second is a little blurry, but shows the entire box.
    Pic 1
    Pic 2
    ________________
    Greg

    Miller 210
    Diversion 165

  • #2
    Hang in there pdog, hank will chime in here when he gets the chance and will correct me if I am wrong. It seems to me that you only need to be concerned with the 2 hots and the ground.
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    • #3
      Originally posted by katiebo
      Hang in there pdog, hank will chime in here when he gets the chance and will correct me if I am wrong. It seems to me that you only need to be concerned with the 2 hots and the ground.
      That is what I was thinking, but I am far from an electrician. My wire hasn't come in yet so I still can't weld but I was hoping to get the electrical end done today so I am ready to roll once it gets here.
      ________________
      Greg

      Miller 210
      Diversion 165

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      • #4
        Run the black and red to the two parallel terminals (red) and the white to the 3rd one (green). At the breaker box the red and black each go to a side of the breaker and the white to the neutral bar.

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        • #5
          No ground?
          ________________
          Greg

          Miller 210
          Diversion 165

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          • #6
            Originally posted by pdog
            I am planning on using a 30 amp 2 pole breaker with 10/3 wire. The black and red will connect to the breaker, white and ground to the appropriate bus bar.

            The outlet I am using is a Cooper 50-A-250V NEMA 6-50 surface mount outlet. The instructions say the ground connects to green, the white to silver screw, and black and red to the remaining 2 screws. Only thing is I do not see the silver screw. Since I already have the 10/3, should I just not connect the white wire at either end and only use the 2 hots and ground?
            Any help would be greatly appreciated.
            Here are 2 pics. The first is a clear shot of the outlet. The second is a little blurry, but shows the entire box.
            Pic 1
            Pic 2
            The silver screw should be in one of the holes between the screws you have mounted the box with. It's an equipment ground & goes to the base of the box. You have everything else correct.
            HTH
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            • #7
              The only place there is another screw is right between the 2 copper screws you can see a hold. That is the long silver screw that secures the cover to the base.

              Couldn't I cap the white wire at each end and run the black and red to hot and connect the ground to the green and ground bus bar?
              ________________
              Greg

              Miller 210
              Diversion 165

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              • #8
                Cope is correct, I was assuming that you had the panel end of it covered already. You don't need a seperate ground because the nuetral is bonded to the ground at the panel.
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                • #9
                  Great. Thanks all
                  ________________
                  Greg

                  Miller 210
                  Diversion 165

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                  • #10
                    Originally posted by katiebo
                    Cope is correct, I was assuming that you had the panel end of it covered already. You don't need a seperate ground because the nuetral is bonded to the ground at the panel.
                    You don't need a separate ground for it to work, but you will need it if this wiring job has to meet the national electric code. They now want a separate ground & neutral.
                    Syncrowave 180 SD
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                    1971 Roughneck 1e
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                    Optrel Satellite OSE
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                    Century 250A/C-D/C BuzzBox
                    1.5 kVA Spot Welder
                    Phoenix Electrode Conditioning Oven

                    Professional Auto Mechanic since 1974
                    My own shop since 1981

                    Cya Frank

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                    • #11
                      Frank, if the plug is in a box that is connected via conduit to the panel enclosure is a seperate ground needed? I want to be certain that what I have done is correct and that I don't misinform folks. I have had a couple for threads regarding subpanel wiring and one has a diagram of what I installed. Please look at the attachment.
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                      • #12
                        Originally posted by katiebo
                        Frank, if the plug is in a box that is connected via conduit to the panel enclosure is a seperate ground needed? I want to be certain that what I have done is correct and that I don't misinform folks. I have had a couple for threads regarding subpanel wiring and one has a diagram of what I installed. Please look at the attachment.
                        I'm not an electrician (but I HAVE stayed at a Holiday Inn ) I have installed a couple of sub-panels for myself in the past year, & the electricians recommended (strongly) that I run 4 conductor cable with separate ground & neutral conductors. They called it an "equipment ground".
                        I personally don't see the need for it, but don't want my insurance to be in jeopardy because I didn't wire something according to the NEC.
                        You probably should check with some local electricians.
                        Syncrowave 180 SD
                        MM185 with 3035 Spool gun
                        1971 Roughneck 1e
                        Stars-n-Stripes BWE
                        Optrel Satellite OSE
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                        Lincoln 200SA Diesel
                        O/A Set
                        Century 250A/C-D/C BuzzBox
                        1.5 kVA Spot Welder
                        Phoenix Electrode Conditioning Oven

                        Professional Auto Mechanic since 1974
                        My own shop since 1981

                        Cya Frank

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                        • #13
                          Will do. Thanks for your input Frank.
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                          • #14
                            If I'm reading the NEC correctly; on a 220V circuit, you don't need to carry a neutral. The two hots go to each side screw on his outlet and the ground goes to the green. Three conductors should be all he needs (black = hot, red = hot, green = ground)

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                            • #15
                              The 6-50 plug recepticle configuration only allows 3 wires also.
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